CF-5200 Frequently Asked Questions
Question number FAQ-0333
Using two accelerometers in a impact test, (1) how to determine the transfer function, α1/α0, V1/V0, X1/X0: where α = acceleration, V = velocity, X = displacement. (2) Do all these yield the same value?
(1) Input α 0 to chA and α 1 to chB, and when measuring the frequency response function, it will be α 1 /α 0.
The physical meanings are different, but the results are the same.
V1／V0＝α1×（1／Jω）÷{α0×（1／Jω）}＝α1／α0
X1／X0＝V1×（1／Jω）÷{V0×（1／Jω）}＝V1／V0
Chapter of the relevant instruction manual
4.6 Frequency Response Function
Last updated date: 2006-01-16